If the name of an album in iPhoto or the name of a folder you selected to sync contains some double-byte characters such as Japanese, Korean, or Chinese, those characters will not synchronize properly to a Fifth Generation iPod. Some characters of a photo album name on a Fifth Generation iPod might be displayed smaller than other characters when synchronized with iTunes.
Try renaming the photo album in iPhoto or the folder to a name that does not include the character that is not synchronizing properly. Or you can use a single-byte (Roman) character set to prevent this from occurring.
This document will be updated as more information becomes available.